Granted Patent
Utility
US 4,937,385 · App. 07/195,246
Process for the manufacture of dialkyl disulfides and polysulfides
Inventors:
Bernard Buchholz, Edward J. Dzierza, Robert B. Hager
Patented Case
View Patent ↗
Granted: Jun 26, 1990
Filed: May 18, 1988
Inventors
Bernard Buchholz
Edward J. Dzierza
Robert B. Hager
Assignee (at issue)
Pennwalt Corporation
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.